according to fire safety regulations, the maximum angle of elevation for another rescue ladder is 73*. This rescue ladder is 40m long. What is the closest the foot of this ladder can be placed from the burning building?

Guest Jun 1, 2017


The distance is given by


40* cos (73°) ....  no closer than  ≈  11.7  ft



cool cool cool

CPhill  Jun 1, 2017

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